2025-07-15 19:13

VisionFrame/Extensions/ScrollViewerExtensions.cs

@@ -0,0 +1,68 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+
+namespace VisionFrame.Extensions
+{
+    public class ScrollViewerExtensions
+    {
+        public static readonly DependencyProperty AlwaysScrollToEndProperty = DependencyProperty.RegisterAttached("AlwaysScrollToEnd", typeof(bool), typeof(ScrollViewerExtensions), new PropertyMetadata(false, AlwaysScrollToEndChanged));
+        private static bool _autoScroll;
+
+
+        private static void AlwaysScrollToEndChanged(object sender, DependencyPropertyChangedEventArgs e)
+        {
+            ScrollViewer scroll = sender as ScrollViewer;
+            if (scroll != null)
+            {
+                bool alwaysScrollToEnd = (e.NewValue != null) && (bool)e.NewValue;
+                if (alwaysScrollToEnd)
+                {
+                    scroll.ScrollToEnd();
+                    scroll.ScrollChanged += ScrollChanged;
+                    // scroll.SizeChanged += Scroll_SizeChanged;
+                }
+                else { scroll.ScrollChanged -= ScrollChanged; /*scroll.ScrollChanged -= ScrollChanged; */}
+            }
+            else { throw new InvalidOperationException("The attached AlwaysScrollToEnd property can only be applied to ScrollViewer instances."); }
+        }
+
+
+        //private static void Scroll_SizeChanged(object sender, SizeChangedEventArgs e)
+        //{
+        //    ScrollViewer scroll = sender as ScrollViewer;
+        //    if (scroll == null) { throw new InvalidOperationException("The attached AlwaysScrollToEnd property can only be applied to ScrollViewer instances."); }
+        //    double d = scroll.ActualHeight + scroll.ViewportHeight + scroll.ExtentHeight;
+        //    scroll.ScrollToVerticalOffset(d);
+        //}
+
+
+        public static bool GetAlwaysScrollToEnd(ScrollViewer scroll)
+        {
+            if (scroll == null) { throw new ArgumentNullException("scroll"); }
+            return (bool)scroll.GetValue(AlwaysScrollToEndProperty);
+        }
+
+
+        public static void SetAlwaysScrollToEnd(ScrollViewer scroll, bool alwaysScrollToEnd)
+        {
+            if (scroll == null) { throw new ArgumentNullException("scroll"); }
+            scroll.SetValue(AlwaysScrollToEndProperty, alwaysScrollToEnd);
+        }
+
+
+        private static void ScrollChanged(object sender, ScrollChangedEventArgs e)
+        {
+            ScrollViewer scroll = sender as ScrollViewer;
+            if (scroll == null) { throw new InvalidOperationException("The attached AlwaysScrollToEnd property can only be applied to ScrollViewer instances."); }
+
+
+            if (e.ExtentHeightChange == 0) { _autoScroll = scroll.VerticalOffset == scroll.ScrollableHeight; }
+            if (_autoScroll && e.ExtentHeightChange != 0) { scroll.ScrollToVerticalOffset(scroll.ExtentHeight); }
+        }
+    }
+}

VisionFrame/ViewModels/FlowTabViewModel.cs

@@ -1100,6 +1100,10 @@ namespace VisionFrame.ViewModels
         {
             Application.Current.Dispatcher.Invoke(new Action(() =>
             {
+                if (LogList.Count>1000)
+                {
+                    LogList.RemoveAt(0);
+                }
                 // 数据量增大  
                 this.LogList.Add(new LogModel
                 {

VisionFrame/Views/FlowTabView.xaml

@@ -4,6 +4,7 @@
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
              xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
              xmlns:local="clr-namespace:VisionFrame.Views"
+             xmlns:extensions="clr-namespace:VisionFrame.Extensions"
              xmlns:i="http://schemas.microsoft.com/xaml/behaviors"
              xmlns:n="clr-namespace:VisionFrame.Nodes"
              xmlns:base="clr-namespace:VisionFrame.Base.TemplateSelector;assembly=VisionFrame.Base"
@@ -457,11 +458,46 @@
             <TabControl Grid.Row="1" Margin="0,5,0,0"
                     BorderThickness="0,1,0,0" BorderBrush="#1f71e5" 
                     Background="#5FFF" Padding="0">
+                
+                <TabItem Style="{StaticResource NormalTabStyle}">
+                    <TabItem.Header>
+                        <StackPanel Orientation="Horizontal">
+                            <TextBlock Text="&#xe7c3;" FontFamily="{StaticResource Iconfont}"
+                                       FontSize="16" VerticalAlignment="Center" Margin="0,0,3,0"/>
+                            <TextBlock Text="运行日志" VerticalAlignment="Center"/>
+                        </StackPanel>
+                    </TabItem.Header>
+                    <ScrollViewer extensions:ScrollViewerExtensions.AlwaysScrollToEnd="True" VerticalScrollBarVisibility="Hidden">
+                        <ItemsControl ItemsSource="{Binding LogList}">
+                            <ItemsControl.ItemTemplate>
+                                <DataTemplate>
+
+                                    <Grid Height="28" Margin="3,1">
+                                        <Grid.ColumnDefinitions>
+                                            <ColumnDefinition Width="50"/>
+                                            <ColumnDefinition Width="80"/>
+                                            <ColumnDefinition/>
+                                        </Grid.ColumnDefinitions>
+                                        <TextBlock Text="{Binding Time ,StringFormat=HH:mm:ss}"
+                           VerticalAlignment="Center" HorizontalAlignment="Center"
+                           Foreground="#888"/>
+                                        <TextBlock Text="{Binding NodeName}" Foreground="#333"
+                            Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Center"/>
+                                        <TextBlock Text="{Binding LogMessage}" Grid.Column="2" Foreground="#333"
+                            VerticalAlignment="Center"/>
+                                    </Grid>
+
+                                </DataTemplate>
+                            </ItemsControl.ItemTemplate>
+                        </ItemsControl>
+                    </ScrollViewer>
+                </TabItem>
+
                 <TabItem Style="{StaticResource NormalTabStyle}">
                     <TabItem.Header>
                         <StackPanel Orientation="Horizontal">
                             <TextBlock Text="&#xe655;" FontFamily="{StaticResource Iconfont}"
-                                       FontSize="16" VerticalAlignment="Center" Margin="0,0,3,0"/>
+                       FontSize="16" VerticalAlignment="Center" Margin="0,0,3,0"/>
                             <TextBlock Text="流程参数管理" VerticalAlignment="Center"/>
                         </StackPanel>
                     </TabItem.Header>
@@ -471,7 +507,7 @@
                             <RowDefinition Height="auto"/>
                         </Grid.RowDefinitions>
                         <ListBox Background="Transparent" BorderThickness="0"
-                                 ItemsSource="{Binding ArgumentList}">
+                 ItemsSource="{Binding ArgumentList}">
                             <ListBox.ItemTemplate>
                                 <DataTemplate>
                                     <Grid Height="30">
@@ -483,25 +519,25 @@
 
                                         <Border Margin="3,3,1,3" CornerRadius="3" Background="#FFF">
                                             <TextBox Text="{Binding ArgName,UpdateSourceTrigger=PropertyChanged}"
-                                                     VerticalContentAlignment="Center"
+                                     VerticalContentAlignment="Center"
-                                                     BorderThickness="0"
+                                     BorderThickness="0"
-                                                     Background="Transparent"
+                                     Background="Transparent"
-                                                     Margin="2" FontWeight="Normal"
+                                     Margin="2" FontWeight="Normal"
-                                                     Foreground="#555"/>
+                                     Foreground="#555"/>
                                         </Border>
 
                                         <ComboBox Grid.Column="1" SelectedItem="{Binding ArgType}"
-                                                  Margin="1,3" BorderThickness="0"
+                                  Margin="1,3" BorderThickness="0"
-                                                  ItemsSource="{Binding DataContext.ArgTypeList,RelativeSource={RelativeSource AncestorType=UserControl}}">
+                                  ItemsSource="{Binding DataContext.ArgTypeList,RelativeSource={RelativeSource AncestorType=UserControl}}">
 
                                         </ComboBox>
 
                                         <Button Content="&#xe660;" FontFamily="{StaticResource Iconfont}"
-                                                Grid.Column="2" Style="{StaticResource DeleteElementButtonStyle}"
+                                Grid.Column="2" Style="{StaticResource DeleteElementButtonStyle}"
-                                                FontSize="10" Width="22" Height="22"
+                                FontSize="10" Width="22" Height="22"
-                                                Margin="0" Background="Transparent"
+                                Margin="0" Background="Transparent"
-                                                Command="{Binding DataContext.DelArgumentCommand,RelativeSource={RelativeSource AncestorType=UserControl}}"
+                                Command="{Binding DataContext.DelArgumentCommand,RelativeSource={RelativeSource AncestorType=UserControl}}"
-                                                CommandParameter="{Binding}"/>
+                                CommandParameter="{Binding}"/>
                                     </Grid>
                                 </DataTemplate>
                             </ListBox.ItemTemplate>
@@ -522,44 +558,13 @@
                         </ListBox>
 
                         <Border Height="1" Background="#DDD" VerticalAlignment="Top"
-                                Grid.Row="1" Margin="5,0"/>
+                Grid.Row="1" Margin="5,0"/>
                         <Button Grid.Row="1" Height="30" Content="添加参数" Width="120"
-                                HorizontalAlignment="Right"
+                HorizontalAlignment="Right"
-                                Margin="5" Command="{Binding AddArgumentCommand}"/>
+                Margin="5" Command="{Binding AddArgumentCommand}"/>
                     </Grid>
 
                 </TabItem>
-
-                <TabItem Style="{StaticResource NormalTabStyle}">
-                    <TabItem.Header>
-                        <StackPanel Orientation="Horizontal">
-                            <TextBlock Text="&#xe7c3;" FontFamily="{StaticResource Iconfont}"
-                                       FontSize="16" VerticalAlignment="Center" Margin="0,0,3,0"/>
-                            <TextBlock Text="运行日志" VerticalAlignment="Center"/>
-                        </StackPanel>
-                    </TabItem.Header>
-
-                    <ItemsControl ItemsSource="{Binding LogList}">
-                        <ItemsControl.ItemTemplate>
-                            <DataTemplate>
-                                <Grid Height="28" Margin="3,1">
-                                    <Grid.ColumnDefinitions>
-                                        <ColumnDefinition Width="50"/>
-                                        <ColumnDefinition Width="80"/>
-                                        <ColumnDefinition/>
-                                    </Grid.ColumnDefinitions>
-                                    <TextBlock Text="{Binding Time ,StringFormat=HH:mm:ss}"
-                                               VerticalAlignment="Center" HorizontalAlignment="Center"
-                                               Foreground="#888"/>
-                                    <TextBlock Text="{Binding NodeName}" Foreground="#333"
-                                                Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Center"/>
-                                    <TextBlock Text="{Binding LogMessage}" Grid.Column="2" Foreground="#333"
-                                                VerticalAlignment="Center"/>
-                                </Grid>
-                            </DataTemplate>
-                        </ItemsControl.ItemTemplate>
-                    </ItemsControl>
-                </TabItem>
             </TabControl>
         </Grid>
     </Grid>